George nimmo



@eine gratte @anni @fitte IMPROVEMENT IN EYES EOR PICKAXES.

@its flgehnle referat tu in time hitters ntint ma netting mit nf. tigestmt.

ATO ALL WHOM IT MAY CONCERN:

'Be it known that I, GEORGE NIMMO, of Jersey City, in the county ofHudson, and State of New Jersey, haveinvented, made, and applied to use,a certain new and useful Improvement in Eyes for Piekaxes, Ste.; and Ido hereby declareV the following to be a full, clear, and exactdescription of the said invention, reference being had to the annexeddrawing, making part of this speciication, wherein" `Figure 1 is a'section of the said eye, and

Figure 2 is a side view of the same. e

Similar marks of reference denote the vsaine parts.

Heretoore the eyes of piekaxes, hatehets, and other tools, have beenmade of an elliptical shape, in order that the strength ofthe woodenhandle might be in the direction of the greatest strain, but the saideyes have generally extended only in the form of a lip at the {lattenedsides of the eye, hence increasing the bearing and length of the eye ina direction that eifeets no beneficial results, because there is butlittle strain on the handle the narrow way of the eye, while in thewidest way of the eye the handle, generally, is not so well supported,as the pick is generally narrower at this part. In hammers,straps-havebcen welded at the eye, running along the handle, andriveted, but these are expensive.

The nature of my said invention consists in an leye for picks, hatchets,86e., in which the metal at the top and bottom ofthe eye is extended soas to run along the handle where the same is the widest, so as to give'amore extended bearing in the direction of the strain, and theseprojecting portions are tapered so that the sido view ofthe eye appearslike an arch; this gives a. slight elasticity to the projections thatthey could not possess if the eye were formed straight on 'the end, andthiselasticity aids in` preventing thewood being strained and themetal'embedded in it by the severe use to which pickaxes in particularare subjected.

In the drawing, a represents the picliaxc, or a portion thereof; but myimproved eye may be applied to any other implement of this. generalcharacter. I1 is the eye, formed of the usual elliptical sectionalshape. c c are projections, extending from the tool atthe longest endsof the eye, and these taper so that the conformation of the handle sideof the eye is an are of a circle or nearly so, as seen at eZ.

This construction of eye prevents the handle becoming injured in use, orloose in the eye, in consequence of not being supported in the directionof the strain. The pick or tool-with an eye of this character maybe madeof cast steel, and finished by hammering or by dies.

What I claim, and desi-reto secure by Letters Patent, isv The eye forpiekaxes and other tools, formed in the manner and for the purposesspecied.

In witness whereof I have hereunto set my signataire this eighth day ofAugust, 1867.

' I GEORGE NIMMO1 Witnesses Clins. II. SMITH, GEO. D. WALKER.

